Results 271 to 280 of about 405,425 (327)

Intelligent Reflecting Surface Aided Dual-Function Radar and Communication System

IEEE Systems Journal, 2021
Dual-function radar andcommunication (DRC) system has been recently recognized as a promising approach to solve the spectrum scarcity problem. However, when the target exists within a crowded area where pathloss dominating, the performance of radar may ...
Zhengming Jiang, Mohamed Rihan, Peichang Zhang, Lei Huang, Qijun Deng, Ji-hong Zhang, E. M. Mohamed   +6 more
semanticscholar   +1 more source

How Many Reflecting Elements Are Needed for Energy- and Spectral-Efficient Intelligent Reflecting Surface-Assisted Communication

IEEE Transactions on Communications, 2022
This paper investigates and analyzes the number of reflecting elements for guaranteed energy- and spectral-efficient intelligent reflecting surface (IRS)-assisted communication systems.
Dong Li
semanticscholar   +1 more source

Intelligent Reflecting Surfaces Enhanced Federated Learning

2020 IEEE Globecom Workshops (GC Wkshps, 2020
This paper investigates the problem of model aggregation for the federated learning aided by multiple intelligent reflecting surfaces (IRSs). Since the local parameters are transmitted over wireless channels, the undesirable propagation error will inevitably deteriorate the performance of global aggregation.
Wanli Ni, Yuanwei Liu, Hui Tian
openaire   +1 more source

Movable Antennas Meet Intelligent Reflecting Surface: Friends or Foes?

IEEE Transactions on Communications
Movable antenna (MA) and intelligent reflecting surface (IRS) are considered promising technologies for the next-generation wireless communication systems due to their shared capabilities of reconfiguring and improving wireless channel conditions.
Xin Wei, Weidong Mei, Qingqing Wu, Qiaoran Jia, Boyu Ning, Zhi Chen, Jun Fang   +6 more
semanticscholar   +1 more source

Optimizing Secrecy Rate for Federated Learning Model Aggregation With Intelligent Reflecting Surface Toward 6G Ubiquitous Intelligence

IEEE Transactions on Cognitive Communications and Networking
Non-Orthogonal Multiple Access (NOMA) based Federated Learning (FL) can achieve the massive connectivity of Internet of Thing (IoT) devices, high transmission rate, and pervasive intelligence in 6G networks.
Bomin Mao, Y. Wu, Jiajia Liu, Hongzhi Guo, Jiadai Wang, Nei Kato   +5 more
semanticscholar   +1 more source

Double Intelligent Reflecting Surface for Secure Transmission With Inter-Surface Signal Reflection

IEEE Transactions on Vehicular Technology, 2021
In this correspondence, we use double intelligent reflecting surface (IRS) assisted design to enhance the secrecy performance of wireless transmission. Different from the existing studies in the literature, the inter-surface signal reflection is considered in this work, which makes the formulated secrecy rate (SR) optimization problem difficult to ...
Limeng Dong, Hui-Ming Wang, Jiale Bai, Haitao Xiao   +3 more
openaire   +1 more source

Intelligent Reflecting Surface-Assisted ambient Backscatter Networks: Reflection Design

2021 International Wireless Communications and Mobile Computing (IWCMC), 2021
The uncontrollability of the radio frequency (RF) environment is one of the main obstacles hindering the popularization of ambient backscatter communication devices, because the devices need strong signal to maintain the overhead of backscatter circuits and the reflection of the modulated signals.
Qiang Liu, Songlin Sun, Michel Kadoch
openaire   +1 more source

On a Novel High Accuracy Positioning With Intelligent Reflecting Surface and Unscented Kalman Filter for Intelligent Transportation Systems in B5G

IEEE Journal on Selected Areas in Communications
High accuracy and simultaneous positioning is an essential demand in future Intelligent Transportation Systems (ITS), while the mobility and dynamics of vehicles place great challenges. Single Base Station (BS) positioning has become popular for its fast
Yishi Zhu, Bomin Mao, Nei Kato
semanticscholar   +1 more source

Intelligent Reflecting Surface Enabled Integrated Sensing, Communication and Computation

IEEE Transactions on Wireless Communications
This paper proposes to leverage intelligent reflecting surface (IRS) to realize radio-frequency-chain-free uplink-transmissions (RFCF-UT) for an integrated sensing, communication and computation system.
Sai Xu, Yanan Du, Jiliang Zhang, Jinlong Liu, Jiangzhou Wang, J. Zhang   +5 more
semanticscholar   +1 more source

Enhancing Reflecting Intelligence Surface Using Surface-Wave Engineering

2024 IEEE INC-USNC-URSI Radio Science Meeting (Joint with AP-S Symposium)
An emerging innovation in next-generation wireless communications involves the manipulation of the radio environment between transmitter and receiver by utilizing thin planar engineered sheets, termed reflecting intelligent surfaces (RIS). These surfaces, when strategically positioned on structures like buildings and billboards, possess the capability ...
Arshed, Talha, Maci, Stefano, Martini, Enrica   +2 more
openaire   +2 more sources